Free electronic circuit design and schematic diagram
This is a Servo System Controller circuit. This circuit is used to control a servo motor remotely. This circuit uses the 555 and requires only six extra components. Here is the circuit: [Source: Philips Semiconductors Application Note]
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The OPA2544 is a dual high-voltage/high-current operational amplifier. We can use it for driving a wide variety of high power loads. 2A output current is provided by this device and power supply range extends to +-35V. Two high performance FET op amps with high power output stages are integrated in OPA2544 on a single monolithic chip. The amplifier and load […]
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This is a circuit of Bi-Directional Motor Drive with Speed Control. This circuit is designed to replace the conventional drivers. The component cost can be reduced and efficiency will increase if we use this circuit. Here is the schematic diagram of the circuit: This circuit include all required circuitry to modulate two bi-directional pulse train outputs in proportion to the […]
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We can use this circuit diagram to adjust the speed of a low-power induction motor, such as those which can be found in fan application. The function of capacitors C1, C2 and C4 is to filter the noise coming from TRIAC commutations. X2 technology is used for C2 capacitor whereas Y2 technology is used for C1 and C4 capacitors. Here’s […]
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This is a Light position controller circuit. Light position controller is a monolithic integrated circuit which is used in passenger cars. Potentiometer on the dashboard is used to define the light beam’s elevation of the head light of the car to a state by the car driver. Here is the circuit: This circuit has some features, they are Thermally protected, […]
Read moreThis is a video tutorial of DC motor control. This video shows how to control the DC motor speed. In this video, speed of the DC motor is controlled by changing the power supply. Increasing speed can be done by increasing the voltage, and decreasing the voltage will decrease the speed of DC motor. Here is the video : To […]
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This is AC mode universal motor drive circuit. This circuit is suitable for large range of application. It uses the microcontroller to interpret the user interface that is used to select the four operating modes that are defined in hardware. Here is the circuit : As power switch, this circuit use “SNUBBERLESS” TRIAC BTA 12-600BW with a maximum specified gate […]
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